feat(i18n): initial support for i18n

layouts/partials/article/components/footer.html

@@ -17,7 +17,9 @@
     {{- if ne .Lastmod .Date -}}
     <section class="article-time">
         {{ (resources.Get "icons/clock.svg").Content | safeHTML }}
-        <span class="article-time--modified">Last updated on {{ .Lastmod.Format ( or .Site.Params.dateFormat "Jan 02, 2006 15:04 MST" ) }}</span>
+        <span class="article-time--modified">
+            {{ T "lastUpdatedOn" }} {{ .Lastmod.Format ( or .Site.Params.dateFormat "Jan 02, 2006 15:04 MST" ) }}
+        </span>
     </section>
     {{- end -}}
 </footer>

layouts/partials/article/components/related-contents.html

@@ -1,7 +1,7 @@
 <aside class="widget related-contents--wrapper">
     {{ $related := .Site.RegularPages.Related . | first 5 }}
     {{ with $related }}
-        <h1 class="widget-title">Related contents</h1>
+        <h1 class="widget-title">{{ T "relatedContents" }}</h1>
         <div class="related-contents">
             <div class="flex article-list--tile">
                 {{ range . }}